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運算放大器 (op amps)
精密運算放大器 (Vos < 1mV)

OPA392

現行

單路、低偏移 (10 μV)、低雜訊 (4.4 nV/rtHz @10kHz) 飛安培偏壓電流 e-trim™ 運算放大器

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產品規格表

OPA392

現行
立即訂購

產品詳細資料

Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 5.5 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 1.7 Vos (offset voltage at 25°C) (max) (mV) 0.01 Offset drift (typ) (µV/°C) 0.16 Input bias current (max) (pA) 0.8 GBW (typ) (MHz) 13 Features e-Trim™ Slew rate (typ) (V/µs) 4.5 Rail-to-rail In, Out Iq per channel (typ) (mA) 1.22 Vn at 1 kHz (typ) (nV√Hz) 6.5 CMRR (typ) (dB) 120 Rating Catalog Operating temperature range (°C) -40 to 125 Iout (typ) (A) 0.065 Architecture CMOS Input common mode headroom (to negative supply) (typ) (V) 0 Input common mode headroom (to positive supply) (typ) (V) 0 Output swing headroom (to negative supply) (typ) (V) 0.03 Output swing headroom (to positive supply) (typ) (V) 0.03 THD + N at 1 kHz (typ) (%) 0.00025
Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 5.5 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 1.7 Vos (offset voltage at 25°C) (max) (mV) 0.01 Offset drift (typ) (µV/°C) 0.16 Input bias current (max) (pA) 0.8 GBW (typ) (MHz) 13 Features e-Trim™ Slew rate (typ) (V/µs) 4.5 Rail-to-rail In, Out Iq per channel (typ) (mA) 1.22 Vn at 1 kHz (typ) (nV√Hz) 6.5 CMRR (typ) (dB) 120 Rating Catalog Operating temperature range (°C) -40 to 125 Iout (typ) (A) 0.065 Architecture CMOS Input common mode headroom (to negative supply) (typ) (V) 0 Input common mode headroom (to positive supply) (typ) (V) 0 Output swing headroom (to negative supply) (typ) (V) 0.03 Output swing headroom (to positive supply) (typ) (V) 0.03 THD + N at 1 kHz (typ) (%) 0.00025
SOT-23 (DBV) 5 8.12 mm² (2.9 mm × 2.8 mm) DSBGA (YBJ) 6 0.96 mm² (1.2 mm × 0.8 mm) SOT-SC70 (DCK) 5 4.2 mm² (2 mm × 2.1 mm)
  • Low offset voltage: ±10µV (maximum)
  • Low-drift: ±0.18µV/°C
  • Low input bias current: 10fA
  • Low noise: 4.4nV/√Hz at 10kHz
  • Low 1/f noise: 2µVPP (0.1Hz to 10Hz)
  • Low supply voltage operation: 1.7V to 5.5V
  • Low quiescent current: 1.22mA
  • Fast settling: 0.75µs (1V to 0.1%)
  • Fast slew rate: 4.5V/µs
  • High output current: +65mA/–55mA short circuit
  • Gain bandwidth: 13MHz
  • Rail-to-rail input and output
  • Specified temperature range: –40°C to +125°C
  • EMI and RFI filtered inputs
  • Low offset voltage: ±10µV (maximum)
  • Low-drift: ±0.18µV/°C
  • Low input bias current: 10fA
  • Low noise: 4.4nV/√Hz at 10kHz
  • Low 1/f noise: 2µVPP (0.1Hz to 10Hz)
  • Low supply voltage operation: 1.7V to 5.5V
  • Low quiescent current: 1.22mA
  • Fast settling: 0.75µs (1V to 0.1%)
  • Fast slew rate: 4.5V/µs
  • High output current: +65mA/–55mA short circuit
  • Gain bandwidth: 13MHz
  • Rail-to-rail input and output
  • Specified temperature range: –40°C to +125°C
  • EMI and RFI filtered inputs

The OPAx392 family of operational amplifiers (OPA392, OPA2392, and OPA4392) features ultra-low offset, offset drift, and input bias current with rail-to-rail input and output operation. In addition to precision dc accuracy, the ac performance is optimized for low noise and fast-settling transient response. These features make the OPAx392 an excellent choice for driving high-precision analog-to-digital converters (ADCs) or buffering the output of high-resolution, digital-to-analog converters (DACs).

The OPAx392 feature TI’s e-trim™ operational amplifier technology to achieve ultra-low offset voltage and offset voltage drift without any input chopping or auto-zero techniques. This technique enables ultra-low input bias current for sensor inputs or photodiode current-to-voltage measurements, creating high-performance transimpedance stages for optical modules or medical instrumentation.

The OPAx392 family of operational amplifiers (OPA392, OPA2392, and OPA4392) features ultra-low offset, offset drift, and input bias current with rail-to-rail input and output operation. In addition to precision dc accuracy, the ac performance is optimized for low noise and fast-settling transient response. These features make the OPAx392 an excellent choice for driving high-precision analog-to-digital converters (ADCs) or buffering the output of high-resolution, digital-to-analog converters (DACs).

The OPAx392 feature TI’s e-trim™ operational amplifier technology to achieve ultra-low offset voltage and offset voltage drift without any input chopping or auto-zero techniques. This technique enables ultra-low input bias current for sensor inputs or photodiode current-to-voltage measurements, creating high-performance transimpedance stages for optical modules or medical instrumentation.
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技術文件

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重要文件 類型 標題 格式選項 下載最新的英文版本 日期
* 資料表 OPAx392 Precision, Low-Offset-Voltage, Low-Noise, Low-Input-Bias-Current, Rail-to-Rail I/O, e-trim™ Operational Amplifiers datasheet (Rev. I) PDF | HTML 2025/3/15
白皮書 Op Amp Input and Output Swing Limitations PDF | HTML 2023/12/7
應用說明 Determine Optimal Isolation Resistance for Driving Capacitive Load PDF | HTML 2023/7/31
應用說明 Impact of Current Noise in CMOS and JFET Amplifiers PDF | HTML 2023/5/4
技術文章 Designing signal chains for portable diagnostics PDF | HTML 2022/5/18
應用說明 Amplifier Input Common-Mode and Output-Swing Limitations PDF | HTML 2022/1/14
技術文章 Do I need more slew rate or bandwidth in my high-speed, low-side current shunt mea PDF | HTML 2021/9/21
電子書 An Engineer’s Guide to Designing with Precision Amplifiers 2021/4/29

設計與開發

如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。

開發板

AMP-PDK-EVM — 放大器性能開發套件評估模組

放大器性能開發套件 (PDK) 是一款評估模組 (EVM) 套件，可測試通用運算放大器 (op amp) 參數，並與大多數運算放大器和比較器相容。EVM 套件提供主板和多個插槽式子卡選項，可滿足封裝需求，使工程師能夠快速評估和驗證裝置性能。

AMP-PDK-EVM 套件支援五種最熱門的業界標準封裝，包括：

  • D (SOIC-8 和 SOIC-14)
  • PW (TSSOP-14)
  • DGK (VSSOP-8)
  • DBV (SOT23-5 和 SOT23-6)
  • DCK (SC70-5 和 SC70-6)
使用指南: PDF | HTML
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開發板

DIP-ADAPTER-EVM — DIP 轉接器評估模組

Speed up your op amp prototyping and testing with the DIP-Adapter-EVM, which provides a fast, easy and inexpensive way to interface with small, surface-mount ICs. You can connect any supported op amp using the included Samtec terminal strips or wire them directly to existing circuits.

The (...)

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模擬型號

OPAx392 PSpice Model (Rev. B)

SBOMBK2B.ZIP (29 KB) - PSpice 模型
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模擬型號

OPAx392 TINA-TI Reference Design (Rev. A)

SBOMBK4A (337 KB) - TINA-TI 參考設計
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模擬型號

OPAx392 TINA-TI Simulation Companion for Low-Input-Bias Optical Receiver

SBOMBV9 (2095 KB) - TINA-TI 參考設計
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模擬型號

OPAx392 TINA-TI SPICE Model (Rev. A)

SBOMBK3A.ZIP (10 KB) - TINA-TI Spice 模型
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計算工具

ANALOG-ENGINEER-CALC — PC software analog engineer's calculator

類比工程師的計算機旨在加速類比電路設計工程師定期使用的許多重複計算。此基於 PC 的工具提供圖形介面，列出各種常見計算，從使用回饋電阻器設定運算放大器增益到選擇適當的電路設計元件以穩定類比數位轉換器 (ADC) 驅動緩衝電路。

除了作為獨立工具使用外，此計算機還與類比工程師口袋參考中描述的概念相得益彰。

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計算工具

OPAMP-NOISECALC — Noise Calculator

This folder contains three tools to help in understandning and managing noise in cicuits. The included tools are:

  • A noise generator tool - This is a Lab View 4-Run Time executable that generates Gaussian white noise, uniform white noise, 1/f noise, short noise, and 60Hz line noise. Temporal data, (...)
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封裝 針腳 CAD 符號、佔位空間與 3D 模型
SOT-23 (DBV) 5 Ultra Librarian
DSBGA (YBJ) 6 Ultra Librarian
SOT-SC70 (DCK) 5 Ultra Librarian
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